NZ Shining Bronze and Hawkesbury rarities

Hi Dion and others,
Your reports about a { just one } Black-tailed Native Hen are met with some
amusement down here in Mexland. We currently have literally thousands all
over the place, it's like having a mouse plague. At other times one can be
really struggling to find one BTNH. Does anyone have any idea where they
disappear to ?
Tony.